Patch "sparc: tsb must be flushed before tlb" has been added to the 3.0-stable tree

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This is a note to let you know that I've just added the patch titled

    sparc: tsb must be flushed before tlb

to the 3.0-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     sparc-tsb-must-be-flushed-before-tlb.patch
and it can be found in the queue-3.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 175bc3b75a63151eba7cab828d34ce86fe854b69 Mon Sep 17 00:00:00 2001
From: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>
Date: Tue, 18 Jun 2013 09:05:36 -0500
Subject: sparc: tsb must be flushed before tlb

From: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>

This fixes a race where a cpu may re-load a tlb from a stale tsb right
after it has been flushed by a remote function call.

I still see some instability when stressing the system with parallel
kernel builds while creating memory pressure by writing to
/proc/sys/vm/nr_hugepages, but this patch improves the stability
significantly.

Signed-off-by: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>
Acked-by: Bob Picco <bob.picco@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/sparc/mm/tlb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -115,8 +115,8 @@ no_cache_flush:
 	}
 
 	if (!tb->active) {
-		global_flush_tlb_page(mm, vaddr);
 		flush_tsb_user_page(mm, vaddr);
+		global_flush_tlb_page(mm, vaddr);
 		goto out;
 	}
 


Patches currently in stable-queue which might be from dave.kleikamp@xxxxxxxxxx are

queue-3.0/sparc-tsb-must-be-flushed-before-tlb.patch
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